Biology
Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 14, Problem 2CQ

Transcriptional regulation often involves a regulatory protein that binds to a segment of DNA and a small effector molecule that binds to the regulatory protein. Does each of the following terms apply to a regulatory protein, a segment of DNA, or a small effector molecule?

  1. a. repressor
  2. b. inducer
  3. c. operator
  4. d. corepressor
  5. e. activator
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Students have asked these similar questions
Define the following terms: a. promoter b. consensus sequence c. operon d. chromatin-remodeling complex e. general transcription factors
Which of the following mechanisms is an example of post-transcriptional gene regulation? A. binding of a repressor protein to an operon B. alternative splicing of exons in an RNA transcript C. acetylation of histones in chromatin D. methylation of specific regions of DNA
Transcriptional repressor proteins (e.g., lac repressor), antisense RNA, and feedback inhibition are three different mechanisms that turn off the expression of genes and gene products. Which of these three mechanisms will be most effective in each of the following situations? A. Shutting down the synthesis of a polypeptide B. Shutting down the synthesis of mRNA C. Shutting off the function of a protein For your answers to parts A–C that list more than one mechanism, which mechanism will be the fastest or the most efficient?
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